Abstract: The present invention relates to an electrical storage cell (1) comprising a positive terminal (5), a negative terminal (4), a positive electrode (8) and a negative electrode (9) electrically connected to the positive terminal and to the negative terminal, respectively. Additionally, there is a collector of a first polarity (20) having a plane part (21) is electrically connected to the electrode of the first polarity, and bent electrical connection means (26) connecting the plane of the collector to the terminal of the first polarity and having a bending radius of curvature less than that of a part having the same thickness as the plane part. The invention also relates to the method of assembling this kind of electrical storage cell.

Abstract: A vent valve includes a vent cap closed by a cover plate with an orifice through it. The vent cap has a circular section and includes two diametrally opposed vent holes on its circumferential wall. An elastic seal having three vertices arranged in a triangle and connected in pairs by respective circular arcs—and preferably in the shape of a REULEAU triangle—is compressed between the bottom of the vent cap and the cover plate. The seal therefore blocks the orifice. If the fluid pressure at the orifice is sufficiently high, the fluid compresses the seal further and makes a path for itself between the seal and the cover plate and then escapes through the vent holes. The vent valve is suitable for use in a storage cell, in which case the cover plate can be used to close its casing.